Construction sheets



P 1964 T. B. JOHNSON 3,150,465

CONSTRUCTION SHEETS Filed April 4, 1961 INVEN TOR. THOMAS B. JOHNSON BY lg/k ATTORNEY United States Patent 3,150,465 CGNSTRUCTION SHEETS Thomas B. Johnson, Ambridge, Pa., assignor to H. H. Robertson Company Filed Apr. 4, 1961, Ser. No. 100,557 1 Claim. (Cl. 50-236) This invention relates to building construction sheets of the type known in the industry as V-beam corrugation sheets. More particularly such sheets are fabricated from materials identified as protected metals, i.e., a metal sheet, usually carbon steel, coated with a thick, tough surface of bituminous or plastic material.

Such protected metal sheets are more fully described in U.S. Patents 1,366,999, 1,418,348, 1,432,512, 1,536,- 549, 1,812,732, 1,862,332, 1,863,147, 1,863,186, 1,864,- 971, 1,936,228, 1,973,193, 1,982,243, 2,068,975, 2,244,- 352, 2,286,120, 2,392,272, 2,440,626, 2,472,963, 2,631,- 641, 2,668,781, 2,764,808. p

The protected metal sheets with which this invention is concerned are normally secured to the sides and roofs of buildings to serve as weather-proof sheathing for the buildings. Such materials are provided in various profiles, one of which is the so-called V-beam corrugation. The V-beam corrugation is illustrated and described in US.

Patents 1,936,228 and 1,982,243, for example. The V- beam corrugation sheets are assembled onto a building structure with the corrugations in generally parallelalignment by overlapping the lateral corrugations of adjacent sheets. A self-tapping threaded fastener is driven through the ridges of overlapped lateral corrugations to secure adjacent sheets. Heretofore this side lapping assembly has presented three problems:

(1) Weather-proof characteristics; (2) External appearance; and (3) Internal appearance.

The weather-proof characteristics of the side lap can be satisfactory if suitable sealants are provided between the two adjacent overlapped sheets. However, it is preferable to avoid the use of sealant compositions. The external and internal appearance of the side lap usually is satisfactory so long as the sheets of protected metal are fabricated from flat sheets of steel. The more modern production techniques involve fabrication of the protected metal sheets from coiled ribbons of steel. It is a characteristic of coiled steel ribbon that the lateral edges exhibit some waviness when the steel ribbon is is uncoiled and flattened.

The waviness of the metal edges is visually apparent in both the external and internal appearance of existing side laps. The Waviness, moreover, interferes with the provision of satisfactory weather-proofing characteristics in the protected metal corrugated sheets where sealant compounds are not utilized.

The object of the present invention is to provide a corrugated protected metal sheet having V-bearn corrugations which will have a uniform, pleasing internal and external appearance and will have suitable weathering characteristics.

According to the present invention this object is accomplished by providing along each lateral edge of a V-beam corrugated protected metal sheet an additional flange. These additional flanges are to be known as a hug edge and a hugged edge. The additional flange is provided along the lateral downwardly inclined surfaces of the V-beam corrugated protected metal sheet. The hugged edge is outwardly directed while the hug edge is inwardly directed. When the lateral corrugations of two adjacent V-beam corrugated protected metal sheets are overlapped, the bug edge of the external sheet forms a weather resistant bond with a sloping surface of the 3,150,465 Patented Sept. 29, 1964 internal sheet; the hugged edge of the internal sheet forms a weather resistant bond with a sloping surface of the external sheet. The weather resistance bonds present a pleasing visual appearance to both the internal and external surfaces of the side lap.

For a clear understanding of the present invention, its objects and advantages, reference should be had to the accompanying drawings in which:

FIGURE 1 is a perspective illustration of a protected metal sheet in V-beam corrugated configuration according to the present invention;

FIGURE 2 is a cross-section illustration showing a preferred form of protected metal sheeting;

FIGURE 3 is a cross-section illustration of two adjacent protected metal sheets of V-beam corrugated configuration in a partly assembled relation; J

FIGURE 4 is a cross-section illustration, similar to that of FIGURE 3, showing two side-by-side protected metal building sheets of V-beam corrugated configuration in completely assembled relation according to the present invention; and

FIGURES 5 and 6 are fragmentary cross-section illustrations showing lateral corrugation details. 1

Referring to FIGURE 1 there is illustrated a corrugate protected metal sheet 10 having a V-beam corrugation which includes fiat top walls 11 and flat bottom walls 12 spaced apart by inclined side walls 13. The flat top walls 11 and flat bottom walls 12 are generally parallel to each other. It will be observed that the protected metal sheet 16 terminates at each end along a downwardly inclined sidewall 13 and 13b, each of which joins one of the lateral flattop walls 11. One of the downwardly inclined lateral side walls 13a terminates in an outwardly bent flange portion 14a; the other downwardly inclined lateral side wall 13b terminates in an inwardly directed terminal flange portion 14b. The terminal flange portions 14a, 14b serve as a hugged edge and a hug edge, respectively. 1

The protected metal sheeting from which the present V-beam corrugated sheets are fabricated is illustrated in a'preferred embodiment in FIGURE 2 wherein a sheet of metal, usually carbon steel, is identified by the numeral 15. Secured to each surface of the metal sheet 15 is a sheet of asbestos felt 16 preferably bonded to the metal sheet 15 by means of a protective metal coating ing 17 also may comprise oil modified, styrenated alkyd resin as taught in co-pending application Serial No. 677,- 147, filed August 8, 1957 and assigned to the assignee of the present invention. Preferably the outer coating 17 will have a thickness on each side of the metal sheet of at least 0.015 inch. The metal sheet 15 normally is comprised of carbon steel having a thickness from 24 gauge through 14 gauge. The precise composition of the protected metal sheet forms no part of the present invention.

Referring once more to FIGURE 1, the flat bottom Walls 12 have the same width. The flat top walls 11 have the same width with the exception of the one lateral top wall 110. The outer width of the top wall 11a corresponds to the width of the inner side of the other top walls 11. Reduction of the width of the one outer top Wall 11a permits the overlapping of the present construction sheets.

area-ace Referring to FIGURES 3 and 4, there are illustrated two of the present construction sheets 10a and 1011 assembled in outer relation upon a building structure having a sub-girt 13. It will be observed that the two construction sheets 10a, 101) are secured to the sub-girt 18 by means of screws 19 which extend through the flat bottom walls 12. The flat top wall 111; overlaps the flat top wall 11a and a suitable screw 20 is provided through aligned drilled holes in the two top walls 11b, 11a. The lateral corrugation of the sheet 10a comprises an inclined side wall 13c, a reduced width top wall 11a and a downwardly inclined side Wall 1311, which terminates in a flange portion 14a which is outwardly bent with respect to the sheet 10a. The sheet 10b has a lateral corrugation which comprises an inclined side Wall 13d, a flat top wall 11b and a downwardly inclined side wall 13b which terminates in a flange portion 141) which is inwardly bent with respect to the sheet 10b.

As shown in FIGURE 3, the screw 20 extends through both of the top walls 11b, 11a. Prior to being drawn tight, the screw 20 permits the tip of the terminal flange portion 14b to make contact with the outer surface of the inclined side wall 130 and the tip of the terminal flange portion 14a to make contact with the inner surface of the inclined side wall 13d before the outer surface of the reduced width top wall 11a and the inner surface of the top wall 111; are drawn into engagement. When the screw 20 is drawn tight, as shown in FIG- URE 4, the two construction panels iltia, 16b are provided with a weather tight side lap seam which has a pleasing external and internal visual ap earance. By tightening the screw 20, the top walls 11b and 11a are brought into engagement along their inner and outer surfaces respectively. The inclined side wall 13b and flange end portion 14b are resiliently urged into engagement with the outer surface of the inclined side wall 13c. By virtue of the presence of the terminal flange portion 14b, only its extreme edge is in actual contact with the outer surface of the inclined side wall He The provision of the terminal flange portion 14b eliminates any waviness along the edge of the construction sheet It?!) which may have resulted from the rolled steel ribbon from which the construction sheet 10b was fabricated.

Similarly when the screw 26 is tightened, the inclined side wall 13a and flanged end portion 14a are resiliently urged toward contact with the inclined side Wall 13d. The provision of terminal flange portion 14a permits actual contact with the inclined side wall 13d only along its inner surface with the extreme edge of the lateral flange portion 14a. Again the provision of the lateral flange portion 14a eliminates any waviness which may have been inherent in the coiled steel ribbon from which the construction sheet 10a was fabricated.

It is essential in the fabrication of building sheets according to this invention that the terminal flange portions 14a, 1411 have a sufficient angle with respect to the inclined side walls 13a, 1312, respectively so that a suitable weathertight bond is secured. Nevertheless the aforesaid angle may not be too great or the construction sheets will be marred and damaged by penetration of the flanged edge portions 14a, 1412 into the inclined side walls 13c, 13d.

The preferred configurations for the flanged edge portions 14a, 1412 are set forth in FIGURES 5 and 6 respectively.

As shown in FIGURE 5, the lateral edge portion of a construction sheet Ida bears the same numerals as FIGURES 3 and 4.

As shown in FIGURE 5, the numeral 30 indicates an extension of a center line drawn through the inclined side wall 13a The numeral 31 indicates a center line drawn through the terminal flange portion 14a.

An angle 32 between the center lines 30, 31 preferably is in range of 4-18.

As shown in FIGURE 6, the numeral 13 represents a center line extension of the inclined side wall 131). The numeral 34 indicates a center line extension of the terminal flange portion 141). An angle 35 between the lines 33, 34- preferably is in the range of 4l8.

According to the provisions of the patent statutes, I have explained the principle, preferred embodiment and mode of operation of my invention and have illustrated and described what I now consider to represent its best embodiment. However, I desire to have it understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically illustrated and described.

I claim:

In a joint for connecting a pair of facing sheets in overlapping relation, the combination of first and second adjacent corrugated sheets each having in its body portion substantially V-beam corrugations of substantial depth provided with substantially straight interior side walls and with substantially flat top and bottom horizontal walls, the lateral corrugation of said first sheet being overlapped with the lateral corrugation of said second sheet, each of said sheets terminating along the adjacent side edges thereof in a downwardly inclined exterior side Wall, the downwardly inclined exterior side Wall of said first sheet having a terminal portion inwardly bent toward said body portion as a hug edge, the downwardly inclined exterior side wall of said second sheet having a terminal portion outwardly bent away from said body portion as a hugged edge, all of said interior side walls being inclined at substantially the same angle with respect to said top and bottom horizontal walls, there being substantially no waviness along said hug edge and said hugged edge, the overlapping lateral corrugations of said first and second sheets being secured together at and with the top flat horizontal walls thereof in overlying surface contact whereby the hug edge of said first sheet is urged into resilient contact with the outer face of an inclined interior side wall of said second sheet and the hugged edge of said second sheet is urged into resilient contact with the inner face of an inclined interior side wall of said first sheet.

FOREIGN PATENTS Netherlands Dec. 15, 1953 

